airplay mirroring only works for a few minutes
Hi
I have a brand new macbook pro and an apple tv 3. When I use airplay mirroring it works for about 15 minutes and then it switches off. This is very frustrating. I can't seem to find a solution. I've tried hooking up my Apple TV via ethernet, but that doesn't work. Nothing does. Anyone having this problem?
Thanks,
Ramsay
MacBook Pro with Retina display, OS X Mountain Lion (10.8.3)